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Watchdog/en: различия между версиями
Новая страница: «In the system watchdog device is presented by the /dev/watchdog1, the configuration of the watchdog daemon is stored in the file /etc/watchdog.conf»
(Новая страница: «Watchdog») |
(Новая страница: «In the system watchdog device is presented by the /dev/watchdog1, the configuration of the watchdog daemon is stored in the file /etc/watchdog.conf») |
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| (не показаны 3 промежуточные версии этого же участника) | |||
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<languages/> | <languages/> | ||
A watchdog timer or ''Watchdog'' is a hardware implemented monitoring circuit for a system hang. | |||
It is a timer built on a separate comparator chip. The timer is periodically reset by sending an alternating signal to the timer input from the GPIO output of the processor. | |||
If the reset does not occur within a certain time interval (~15c), a power reset occurs (turning off one of the power lines for 3-4 seconds). | |||
In the system watchdog device is presented by the /dev/watchdog1, the configuration of the watchdog daemon is stored in the file /etc/watchdog.conf | |||